Box-making machine



(No Model.) 2 SheetsSheet 1.

:E. ARZT, BOX MAKING MAGHINE.

Patented May 21 1889..

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(No Model.) 2 Sheets-8heet 2..

. E. ARZT. BOX MAKING MACHINE.

No. 403,821. Patented May 21 1889.

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N. PETERQ. Pmmmm hu. Washington. 0.6.

UNITED STATES I PATENT" OFFICE.

EDWARD ARZT, OF CHICAGO, ILLINOIS.

BOX-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 403,821, dated May 21, 1889.

Application filed October 9, 1888. Serial No. 287,604. (No model.)

T at whom it may concern.-

Be it known that I, EDWARD ARZT, a cit-izen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Box-Making Machines, which are fully set forth in the following specification, reference being had to the accompanying drawings forming a part hereof, and in which- Figure 1 shows a plan view of my improved box-making machine. Fig. 2 shows the end view of the same across its width and carrying the transverse driving-shaft Z. Fig. 3 shows the end opposite the above-mentioned end. Fig. 4. shows the side elevation of the machine of that side which carries the longitudinally-placed driving-shaft. Fig. 5 shows in elevation one side of the standard (1, with the jaw or movable presser-bar, as seen 011 the front or interior side. Fig. 6 shows the other interior side of the same standard, the jaw being now seen in side view. Fig. 7 is a front view of the same jaw taken out of the standard, so as to show its dovetailed attached side piece, n. Fig. 8 shows Fig. 7 in side view. Fig. 9 shows a fragment of two sides of a box ready cut and to be joined together by the action of my machine.

Like letters refer to like parts.

The object of my invention is to provide a machine by means of which the sides of dovetailed boxes and drawers, particularly such as are shown in Fig. 9, may be driven together; and to attain said ends I provide a well-braced iron base, a, with a true plane surface, and in one corner thereof is fastened a standard, I), having two vertical walls at right angles to each other, with their plane faces looking over the bed-plate a. Upon said bed-plate a rests an adjustable bed-plate, a, which may be only as wide as the bases of the standards (I and e, which it carries, while in length it extends entirely across the width of the main base-plate, over which it moves longitudinally. The upper and lower sur faces of said plate a are true and parallel planes, and upon it, opposite the standard I), it carries a fixed standard, cl, and also an ad justable standard, e, and upon the base c1., in a position at right angles with the standards 6 and d, is attached the adjustable standard f. The said four standards may be adjusted so as to hold within them a right-angled equilateral or parallelogrammic figure, as the four sides of a box, g, or, when desired, the angles may be other than right angles.

The construction and arrangement of the parts by which the said adjustments are made are substantially as follows, namely:

The plate a has two screw-threaded lugs, a which slide in open grooves cut in the bedplate a, through which pass the screws h. Said screws lie wholly below the surface of the bed a and turn in a fixed position constructed after well-known forms and are operated simultaneously by means of two sprocket wheels, 2' attached to their outer ends, projecting beyond the side of the bedplate a, connected by a chain belt, 1', receiving motion from a crank, 2", attached to one of said screws. By means of said construction the said standards d and 6 will move in the longitudinal direction on the base parallel to the standards I) and f.

The standard e is adjusted longitudinally on its base a by means of a screw, h, passing through a threaded lug, a constructed in the same manner as the screws h and lugs o of the bed-plate a. The standard f is adjustable across and on the bed-plate a by means of a screw, 71 passing through a lug, a constructed and operated precisely as the screws h and h. The bed-plate a is held in place by screw-bolts j, the heads of which are countersunk below the level of its surface to be out of the way, and of which the nuts travel in T-shapcd grooves in the bed at. There is a similar groove, 70', in the bed-plate a, by means of which the standard 6 is held and fastened to its place by similar bolts, j, and the standard f is held by like bolts, f in a like T-shaped groove, 76, of the bed-plate a. Said screws and their channels and said T- shaped grooves are made long enough to permit the desired, motion to said standards. The standard I) may be fastened to its bedplate in any well-known manner, as it is immovable. The shafts Z Z turn in bearings in the standards I), d, and f, and are united and driven by the equal-diamet-ered bevel-gears m. The hubs of said wheels rest against the standard, and thereby prevent any longitudinal motion of the shafts. Two eccentrics, Z and P, are placed on each of said shafts and between said standards, one on each of the face sides of the standard I) and one on each of the thereto opposite faces on the standards d and f. Said eccentrics, near the standards d r and 7, turn with the shafts by means of a spline and' feather, but slide longitudinally on them, so as to move with their standards, while the eccentrics near the standard I) are permanently keyed to their place, and all said eccentrics are each attached to a reciprocating vertical jaw or presser-bar, n, which move closely on the face sides of their standards, and said jaws have each integral with them a dovetail piece, 02, which is held in a cavity, 0, in the walls or face sides of the standards. (Shown by the full and broken lines 0 in Fig. 6, and also by broken lines in Fig. l.) The eccentric-straps are each connected to said jaws by means of a connecting-rod, 0 of which its outerend works in a socket on a pin,0 and said jaws thus receive reciprocating motion, which, by means of said cavity and their guides 11', move back and forth in a vertical plane and on a line parallel with the base, and all said jaws move simultaneously toward and from the box 9.

The reciprocating jaws are shown with teeth 07?, which press directly upon the sides of the tenons of the box sides; but the resisting parts opposite to them on the standards d and e have no teeth, but have instead a solid vertical face, a which presses against the side of the box inside of the base of the tenons of the box sides.

Upon the opposed inner sides of the standards d and e are hung adjustable hangers p,

which have vertical slotted blades p, through which, by means of bolts 10 said hangers can be vertically adj usted, so as to hold one end of a box, the adjustment being for the purpose of having the teeth a of the jaws bear on the tenons, and opposite to said hangers, and on the sides of the jaws moved by the shaft Z, are attached in like position a like pair of adjustable hangers, p, to hold up the other end of the box. Said adjustable hangers p serve two purposes: first, to adjust so as to bring the teeth a of the jaws n to bear in the right place, and, second, to reduce the labor in putting in and taking out shallow boxes by setting them up high in the standards, and where abox is made with a sliding and dovetail cover the end over which the cover slides is lower from its top. Then the hangers may be adjusted to it so as to hold the edge from which the box is finished or worked level in the hangers; but said hangers are not indispensable, as may be plainly seen. Each box may rest on the bed-plate or standards, or a removable support rising from the bed-plate may be substituted. Nor are the eccentrics and connecting-rods the only device, as tog-. gle-j oints or cam motion might be substituted; but the essential features are the adjustable standards and the fixed and reciprocating vertical jaws attached to them.

All the jaws may be made toothless where the box sides are strong enough, or all may be provided with teeth where the box sides are weak, or part of the jaws may be provided with teeth only, as here shown, where two sides of the box are long and weak and the others short or stout, or both.

The operation of my box-making machine is as follows, namely: Motion is given to the jaws at through shafts and connecting mechanism by means of a pulley on the shaft Z. The box sides are first attached together by hand by engaging the tenons enough so as to hold them together while being handled. They are then dropped over the tops of the standards on the hangers p, where they are left until the eccentrics have brought the jaws n forward once, when the tenons will be found forced into each other to their base-line, and then the box sides will fit closely in the corners and be permanently held together by their friction. They are then lifted out again over the standards and will, in a properly-constructed machine, always come'out with true right-angled corners. The box sides are dropped into place in the machine at the time when the jaws move away from each other, and therefore the machine may run continuously; but clutch or equivalent mechanism may be substituted for the single driving-pulstandards, in combination with vertical fixed jaws, and oppositely-placed and parallel re-. ciprocating jaws on said standards, and vertically-adjustable hangers attached to said standards to support the box, and fastening devices between said base and standards, substantially as specified.

3. Ina box-making machine, a channeled base, in combination with one fixed and three adjustable standards provided with vertical and fixed jaws, and oppositely-placed and reciprocating jaws, and equally-speeded shafts connected and at right angles to each other, carryingeccentrics connected to and operat ing said jaws, and fastening devices between said channeled base and standards, substantially as specified.

4. In a box-making machine, a base provided with a fixed and an adj ustable standard and carrying an adjustable base having a fixed and an adjustable standard, said standards being relatively adjustable to each other and provided with fixed vertical jaws,

6. In a box-making machine, a base carrying a fixed and an adjustable standard, in combination with vertical and fixed and oppositely placed parallel and reciprocating and toothed jaws on said standards, said jaws moving, in a vertical plane and in a line parallel to the said base, said teeth bearing 011 the dovetail tenons having teeth 01?, spaced as described, substantially as specified.

EDVARD ARZT.

Witnesses:

T. VoGEL, WM. ZIMMERMAN. 

